#include<bits/stdc++.h>


using namespace std;
int main(){
	double n,ans = 0;
	cin>>n;
	int arr[10005];
	for(int i = 0;i < n;i++){
		cin>>arr[i];
		ans += arr[i];
	}
	cout<<ans<<" ";
	printf("%.5lf",ans / n);
	return 0;
} 

3,4,5WA

汲取前辈经验也不对